Nothing_Else

Nothing else is a game where you explore, and nothing else. Also you're a fish, so 5 second memory? At any rate, what you can see on screen is your entire world; it doesn't exit outside of the frame borders. When you move in a certain direction the world will be generated accordingly, and what you leave behind will be deleted.

This means that you will always be exploring new places. You'll never back-track, because there is nothing to backtrack to.

Enjoy;